Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite double-row pile foundation pit supporting structure
The invention discloses a composite double-row pile foundation pit supporting structure, and belongs to the technical field of building foundation pit engineering. The supporting structure consists of bored piles, jet grouting piles, prefabricated reinforced concrete square piles, expanding head anchoring bodies, a top beam I, a top beam II and a connecting beam, wherein the top ends of the bored piles and the jet grouting piles are provided with the top beam I and the top beam II respectively; the top beam I is connected with the top beam II through the connecting beam. Sectional jet grouting construction is adopted by the jet grouting piles; the diameter of concretion bodies at the end positions of the bored piles is correspondingly increased to form the expanding head anchor bodies. After the construction of the bored piles is finished, the prefabricated reinforced concrete square piles are inserted into the bored piles before the quality of the bored piles is stable. A row of bored piles with the expanding head anchoring bodies and inserted with the prefabricated reinforced concrete square piles are additionally arranged on the rear side of the conventional single-row pile supporting structure, so the overturning resistance and the rigidity of the single-row pile supporting structure can be effectively improved, and the pile displacement in a later foundation pit excavation process is reduced; compared with the conventional double-row pile structure, the supporting structure has the advantages of equivalent deformation control effect and lower manufacturing cost. Meanwhile, the bored piles can also be used as a deformation control measure which is increased at the later period of the foundation pit excavation.
Composite double-row pile foundation pit supporting structure
The invention discloses a composite double-row pile foundation pit supporting structure, and belongs to the technical field of building foundation pit engineering. The supporting structure consists of bored piles, jet grouting piles, prefabricated reinforced concrete square piles, expanding head anchoring bodies, a top beam I, a top beam II and a connecting beam, wherein the top ends of the bored piles and the jet grouting piles are provided with the top beam I and the top beam II respectively; the top beam I is connected with the top beam II through the connecting beam. Sectional jet grouting construction is adopted by the jet grouting piles; the diameter of concretion bodies at the end positions of the bored piles is correspondingly increased to form the expanding head anchor bodies. After the construction of the bored piles is finished, the prefabricated reinforced concrete square piles are inserted into the bored piles before the quality of the bored piles is stable. A row of bored piles with the expanding head anchoring bodies and inserted with the prefabricated reinforced concrete square piles are additionally arranged on the rear side of the conventional single-row pile supporting structure, so the overturning resistance and the rigidity of the single-row pile supporting structure can be effectively improved, and the pile displacement in a later foundation pit excavation process is reduced; compared with the conventional double-row pile structure, the supporting structure has the advantages of equivalent deformation control effect and lower manufacturing cost. Meanwhile, the bored piles can also be used as a deformation control measure which is increased at the later period of the foundation pit excavation.
Composite double-row pile foundation pit supporting structure
XU LIDONG (Autor:in) / WANG XIAOSHU (Autor:in) / TU WEI (Autor:in) / CAO HUI (Autor:in) / ZHENG YUNGANG (Autor:in) / WANG XIANGMIN (Autor:in) / YU KUNLIN (Autor:in)
06.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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